Background:Programmed death 1(PD-1)blockade plus chemotherapy has become the new first-line standard of care for patients with advanced non-small-cell lung cancer(NSCLC).Yet not all NSCLC patients benefit from this re...Background:Programmed death 1(PD-1)blockade plus chemotherapy has become the new first-line standard of care for patients with advanced non-small-cell lung cancer(NSCLC).Yet not all NSCLC patients benefit from this regimen.This study aimed to investigate the predictors of PD-1 blockade plus chemotherapy in untreated advanced NSCLC.Methods:We integrated clinical,genomic,and survival data from 287 patients with untreated advanced NSCLC who were enrolled in one of five registered phase 3 trials and received PD-1 blockade plus chemotherapy or chemotherapy alone.We randomly assigned these patients into a discovery cohort(n=125),a validation cohort(n=82),and a control cohort(n=80).The candidate genes that could predict the response to PD-1 blockade plus chemotherapy were identified using data from the discovery cohort and their predictive values were then evaluated in the three cohorts.Immune deconvolution was conducted using transcriptome data of 1014 NSCLC patients from The Cancer Genome Atlas dataset.Results:A genomic variation signature,in which one or more of the 15 candidate genes were altered,was correlated with significantly inferior response rates and survival outcomes in patients treated with first-line PD-1 blockade plus chemotherapy in both discovery and validation cohorts.Its predictive value held in multivariate analyses when adjusted for baseline parameters,programmed cell death ligand 1(PD-L1)expression level,and tumor mutation burden.Moreover,applying both the 15-gene panel and PD-L1 expression level produced better performance than either alone in predicting benefit from this treatment combination.Immune landscape analyses revealed that tumors with one or more variation in the 15-gene panel were associated with few immune infiltrates,indicating an immune-desert tumor microenvironment.Conclusion:These findings indicate that a 15-gene panel can serve as a negative prediction biomarker for first-line PD-1 blockade plus chemotherapy in patients with advanced NSCLC.展开更多
目的探讨肉瘤样肾细胞癌组织中PD-L1的表达及肿瘤内微血管密度情况,为肉瘤样肾细胞癌免疫治疗及靶向治疗方案的选择提供理论依据。方法通过免疫组化法检测PD-L1、CD31及CD34在16例肉瘤样肾细胞癌(癌成分均为透明细胞肾细胞癌)中的表达,...目的探讨肉瘤样肾细胞癌组织中PD-L1的表达及肿瘤内微血管密度情况,为肉瘤样肾细胞癌免疫治疗及靶向治疗方案的选择提供理论依据。方法通过免疫组化法检测PD-L1、CD31及CD34在16例肉瘤样肾细胞癌(癌成分均为透明细胞肾细胞癌)中的表达,并评估肿瘤微血管密度。结果16例肿瘤中CD31和CD34免疫组化染色显示,肉瘤样肾细胞癌区域微血管密度明显高于不伴肉瘤样分化的区域,微血管密度计数分别为68.6±25.8 vs 38.7±16.0(t=3.931,P=0.0005)和69.5±28.1 vs 40.1±18.4(t=3.506,P=0.0015),差异有统计学意义。肉瘤样区域PD-L1表达水平高于非肉瘤样区域,CPS分别为34.7±26.9和25.9±27.6,但差异无统计学意义。结论在肉瘤样肾细胞癌中,肉瘤样区域微血管密度和PD-L1表达水平明显高于非肉瘤样区域,提示靶向治疗联合免疫治疗可能为此类肿瘤提供一种有效的治疗方法。展开更多
背景众多证据表明免疫逃逸在肿瘤形成过程中扮演重要角色,慢性萎缩性胃炎(chronic atrophic gastritis,CAG)是胃癌的癌前疾病.安胃汤被发现可改善CAG临床症状及病理表现,实现CAG的逆转,该作用是否与免疫逃逸机制相关有待进一步研究.目...背景众多证据表明免疫逃逸在肿瘤形成过程中扮演重要角色,慢性萎缩性胃炎(chronic atrophic gastritis,CAG)是胃癌的癌前疾病.安胃汤被发现可改善CAG临床症状及病理表现,实现CAG的逆转,该作用是否与免疫逃逸机制相关有待进一步研究.目的从细胞免疫逃逸角度,探讨程序性死亡受体-1(programmed cell death protein 1,PD-1)/程序性死亡受体配体-1(programmed cell death ligand 1,PD-L1)信号轴与安胃汤对CAG模型大鼠疗效之间的关系.方法采用1-甲基-3-硝基-1-亚硝基胍(1-Methyl-3-nitro-1-nitrosoguanidine,MNNG)慢性萎缩性胃炎大鼠模型,应用不同剂量安胃汤及维酶素片进行干预;HE染色观察安胃汤对CAG模型大鼠胃黏膜炎症细胞浸润及组织形态改变的影响;免疫组化检测CAG模型大鼠胃黏膜组织PD-1、PD-L1蛋白表达;ELISA检测血清CD4^(+)、CD8^(+)水平变化;qPCR检测CAG模型大鼠胃黏膜PD-1mRNA、PD-L1mRNA表达;Western-blot检测CAG模型大鼠胃黏膜组织PD-1、PD-L1蛋白表达.结果免疫组化结果示:与模型组和维酶素组比较,安胃汤高、低剂量组PD-L1表达均较低(P<0.01,P<0.05).ELISA实验结果示:与模型组比较,安胃汤高剂量组CD4^(+)表达及CD4^(+)/CD8^(+)比值升高(P<0.01,P<0.05),安胃汤各组和维酶素组CD8^(+)表达降低(P<0.01);与维酶素组比较,安胃汤高剂量组CD8^(+)表达降低(P<0.05).qPCR实验结果显示:与模型组比较,安胃汤高剂量组和维酶素组PD-1mRNA表达下降(P<0.01),安胃汤高、中剂量组PD-L1mRNA表达下降(P<0.01,P<0.05).Western-blot实验结果显示:与模型组比较,安胃汤高、中剂量组PD-1/Actin,PD-L1/Actin表达下降(P<0.01,P<0.05).结论安胃汤抗CAG作用可能与抑制PD-1/PD-L1信号通路诱导的细胞免疫逃逸有关.展开更多
目的探究真实世界中程序性死亡蛋白1(Programmed Death Protein 1,PD-1)/程序性死亡蛋白配体1(Programmed Death Protein Ligand 1,PD-L1)抑制剂治疗对晚期非小细胞肺癌(Non-Small Cell Lung Cancer,NSCLC)二线及以上患者预后转归的影...目的探究真实世界中程序性死亡蛋白1(Programmed Death Protein 1,PD-1)/程序性死亡蛋白配体1(Programmed Death Protein Ligand 1,PD-L1)抑制剂治疗对晚期非小细胞肺癌(Non-Small Cell Lung Cancer,NSCLC)二线及以上患者预后转归的影响。方法选取2019年1月—2023年7月涟水县人民医院就诊的112例晚期NSCLC二线及以上患者为研究对象,依据治疗方法分为两组,每组56例,对照组接受二线及以上单药化疗,观察组接受PD-1/PD-L1抑制剂免疫治疗,对比两组生存质量、无进展生存期、总生存期及不良反应发生率。结果化疗4个周期后,观察组生存质量评分显著高于对照组,差异有统计学意义(P<0.05)。观察组无进展生存期、总生存期显著优于对照组,差异有统计学意义(P均<0.05)。观察组不良反应发生率显著低于对照组,且观察组高血压发生人数显著少于对照组,差异有统计学意义(P均<0.05)。结论晚期NSCLC患者二线治疗中PD-1/PD-L1抑制剂免疫治疗能提升患者生存质量,降低其不良反应发生率。展开更多
基金supported by grants from the National Natural Science Foundation of China(Nos.82102859,82172869,82141101,82272875,and 12126605)the Shanghai Rising-Star Program(Nos.23QA1408000 and 22QA1407800)+1 种基金the Shanghai"Rising Stars of Medical Talent"Youth Development Program Youth Medical Talents—Specialist Program,the Original Exploration Project of Shanghai Natural Science Foundation(No.23ZR1480600)the Health and Family Planning Commission of Shanghai Municipality(No.20224Y0067)
文摘Background:Programmed death 1(PD-1)blockade plus chemotherapy has become the new first-line standard of care for patients with advanced non-small-cell lung cancer(NSCLC).Yet not all NSCLC patients benefit from this regimen.This study aimed to investigate the predictors of PD-1 blockade plus chemotherapy in untreated advanced NSCLC.Methods:We integrated clinical,genomic,and survival data from 287 patients with untreated advanced NSCLC who were enrolled in one of five registered phase 3 trials and received PD-1 blockade plus chemotherapy or chemotherapy alone.We randomly assigned these patients into a discovery cohort(n=125),a validation cohort(n=82),and a control cohort(n=80).The candidate genes that could predict the response to PD-1 blockade plus chemotherapy were identified using data from the discovery cohort and their predictive values were then evaluated in the three cohorts.Immune deconvolution was conducted using transcriptome data of 1014 NSCLC patients from The Cancer Genome Atlas dataset.Results:A genomic variation signature,in which one or more of the 15 candidate genes were altered,was correlated with significantly inferior response rates and survival outcomes in patients treated with first-line PD-1 blockade plus chemotherapy in both discovery and validation cohorts.Its predictive value held in multivariate analyses when adjusted for baseline parameters,programmed cell death ligand 1(PD-L1)expression level,and tumor mutation burden.Moreover,applying both the 15-gene panel and PD-L1 expression level produced better performance than either alone in predicting benefit from this treatment combination.Immune landscape analyses revealed that tumors with one or more variation in the 15-gene panel were associated with few immune infiltrates,indicating an immune-desert tumor microenvironment.Conclusion:These findings indicate that a 15-gene panel can serve as a negative prediction biomarker for first-line PD-1 blockade plus chemotherapy in patients with advanced NSCLC.
文摘目的探讨肉瘤样肾细胞癌组织中PD-L1的表达及肿瘤内微血管密度情况,为肉瘤样肾细胞癌免疫治疗及靶向治疗方案的选择提供理论依据。方法通过免疫组化法检测PD-L1、CD31及CD34在16例肉瘤样肾细胞癌(癌成分均为透明细胞肾细胞癌)中的表达,并评估肿瘤微血管密度。结果16例肿瘤中CD31和CD34免疫组化染色显示,肉瘤样肾细胞癌区域微血管密度明显高于不伴肉瘤样分化的区域,微血管密度计数分别为68.6±25.8 vs 38.7±16.0(t=3.931,P=0.0005)和69.5±28.1 vs 40.1±18.4(t=3.506,P=0.0015),差异有统计学意义。肉瘤样区域PD-L1表达水平高于非肉瘤样区域,CPS分别为34.7±26.9和25.9±27.6,但差异无统计学意义。结论在肉瘤样肾细胞癌中,肉瘤样区域微血管密度和PD-L1表达水平明显高于非肉瘤样区域,提示靶向治疗联合免疫治疗可能为此类肿瘤提供一种有效的治疗方法。
文摘背景众多证据表明免疫逃逸在肿瘤形成过程中扮演重要角色,慢性萎缩性胃炎(chronic atrophic gastritis,CAG)是胃癌的癌前疾病.安胃汤被发现可改善CAG临床症状及病理表现,实现CAG的逆转,该作用是否与免疫逃逸机制相关有待进一步研究.目的从细胞免疫逃逸角度,探讨程序性死亡受体-1(programmed cell death protein 1,PD-1)/程序性死亡受体配体-1(programmed cell death ligand 1,PD-L1)信号轴与安胃汤对CAG模型大鼠疗效之间的关系.方法采用1-甲基-3-硝基-1-亚硝基胍(1-Methyl-3-nitro-1-nitrosoguanidine,MNNG)慢性萎缩性胃炎大鼠模型,应用不同剂量安胃汤及维酶素片进行干预;HE染色观察安胃汤对CAG模型大鼠胃黏膜炎症细胞浸润及组织形态改变的影响;免疫组化检测CAG模型大鼠胃黏膜组织PD-1、PD-L1蛋白表达;ELISA检测血清CD4^(+)、CD8^(+)水平变化;qPCR检测CAG模型大鼠胃黏膜PD-1mRNA、PD-L1mRNA表达;Western-blot检测CAG模型大鼠胃黏膜组织PD-1、PD-L1蛋白表达.结果免疫组化结果示:与模型组和维酶素组比较,安胃汤高、低剂量组PD-L1表达均较低(P<0.01,P<0.05).ELISA实验结果示:与模型组比较,安胃汤高剂量组CD4^(+)表达及CD4^(+)/CD8^(+)比值升高(P<0.01,P<0.05),安胃汤各组和维酶素组CD8^(+)表达降低(P<0.01);与维酶素组比较,安胃汤高剂量组CD8^(+)表达降低(P<0.05).qPCR实验结果显示:与模型组比较,安胃汤高剂量组和维酶素组PD-1mRNA表达下降(P<0.01),安胃汤高、中剂量组PD-L1mRNA表达下降(P<0.01,P<0.05).Western-blot实验结果显示:与模型组比较,安胃汤高、中剂量组PD-1/Actin,PD-L1/Actin表达下降(P<0.01,P<0.05).结论安胃汤抗CAG作用可能与抑制PD-1/PD-L1信号通路诱导的细胞免疫逃逸有关.
文摘目的探究真实世界中程序性死亡蛋白1(Programmed Death Protein 1,PD-1)/程序性死亡蛋白配体1(Programmed Death Protein Ligand 1,PD-L1)抑制剂治疗对晚期非小细胞肺癌(Non-Small Cell Lung Cancer,NSCLC)二线及以上患者预后转归的影响。方法选取2019年1月—2023年7月涟水县人民医院就诊的112例晚期NSCLC二线及以上患者为研究对象,依据治疗方法分为两组,每组56例,对照组接受二线及以上单药化疗,观察组接受PD-1/PD-L1抑制剂免疫治疗,对比两组生存质量、无进展生存期、总生存期及不良反应发生率。结果化疗4个周期后,观察组生存质量评分显著高于对照组,差异有统计学意义(P<0.05)。观察组无进展生存期、总生存期显著优于对照组,差异有统计学意义(P均<0.05)。观察组不良反应发生率显著低于对照组,且观察组高血压发生人数显著少于对照组,差异有统计学意义(P均<0.05)。结论晚期NSCLC患者二线治疗中PD-1/PD-L1抑制剂免疫治疗能提升患者生存质量,降低其不良反应发生率。
